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Archive for the ‘PLC’ Category

Most Important Things to do when Performing PLC Maintenance

Programmable Logic Controllers (PLCs) are built to withstand harsh and extreme environmental conditions, as they form an integral part of many industrial applications. They are durable and well-suited for factory floor use. Nevertheless, it is important you keep the PLCs up and running at peak efficiency all day since they are critical to the smooth […]

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VersaMax Processor Selection Guide

I. INTRODUCTION The VersaMax Programmable Logic Controller (PLC) platform is an industry recognized industrial automation product known for its technical features that meet the industrial operating requirements and standards. Originally released in 1998 by GE Fanuc, the VersaMax platform is now under Emerson Automation. Along with the change in name, comes controller enhancements mostly, with […]

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Top 10 PLC Manufacturers

Below, we will list the top PLC manufacturers that are leading the PLC market at the moment. This should give a lot of insight to what are the most important trends and what is the actual path that they are building.

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SLC 500 Troubleshooting: Appendix

Downloading SLC 500 User program: To download user program to an SLC 500 controller, the user must open the user program that is intended to be downloaded to the controller. Proceed with the configuration of RSLinx and define the driver to be used to communicate with the controller.   1. Configure RSLinx: Launch RSLinx. Click […]

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SLC 500 Processor Selection Guide

I. Introduction Central Processing Units (CPU) or processors are considered the most important and expensive component of a Programmable Logic Controller (PLC) assembly. Processors not only execute the downloaded user program but also manages communication between devices. It may also be operated as a stand-alone device for the purpose of testing, familiarization and learning. II. […]

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Troubleshooting Tutorial: Common SLC 500 Faults – Part 1

I. Introduction Programmable Logic Controllers (PLC) such as Allen-Bradley’s SLC 500 Modular or Fixed style hardware are designed with capability of self-diagnostics. With Self-diagnostics, the controller is able to detect the operational status of every member module and report this externally through varying behavior of built-in LED indicators and internally via the diagnostic buffer. II. […]

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PLC vs DCS: How to Choose?

This might be one of the most common questions between automation engineers and technicians that are starting their way into the industry: “What is the best option for my project? A PLC or a DCS?” Well, as with everything else in the field of automation, it depends. But in the case of PLCs and DCSs, […]

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Allen Bradley vs Mitsubishi PLCs

In the world of industrial automation, there are a number of big names constantly competing against each other for the spot of the biggest automation solutions company – from companies dedicated to the manufacture of PLCs and automation solutions, to brands that are subsidiaries of the biggest commercial conglomerates in the world of electronics. The […]

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PLC vs PAC vs IPC: What is the difference?

Sometimes, it can be difficult to clearly understand the differences between PLCs, PACs and industrial PCs because, at the end, all of them are used for the same purpose, controlling a process, but they all do it in different ways. Some people even think that these three systems compete with each other, but they are […]

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Analog PLCs: Voltage vs Current

            Programable logic controllers (PLC) are devices known to be completely digital, and, usually, digital devices are very easy to understand in the electrical side of things, they work with binary language, 1 and 0, true and false, reference voltage and ground, and this is true even today. But then, how do they have the […]

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